This is the denominator of the SlewMax fraction that caps how much RSVP-TE is allowed to increase the refresh interval R at once when transitioning to a new desired value, avoiding a jump large enough to cause session state to time out mid-transition. This object, together with the refresh-slew-numerator, effectively controls how gradually the device can ramp the refresh interval up when an admin changes it to a larger value, protecting existing sessions from timing out due to too abrupt a change. For example, a SlewMax fraction of 1/2, numerator 1 and this denominator 2, would let the refresh interval increase by at most 50% per step on its way to a new, larger target value.